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CORRESP
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Celsion Corporation

10220-L Old Columbia Road

Columbia, MD 21046

                   June 23,   2011

By EDGAR Correspondence

Securities and Exchange Commission

100 F Street, N.E.

Washington, D.C. 20549

Re:                             Celsion Corporation (the “Company”)

Pre-Effective Amendment No. 1 to Registration Statement on Form S-3

Filed June 22, 2011

(File No.   333-174960)

Ladies and Gentlemen:

Pursuant to Rule 461 of the General Rules and Regulations under the Securities Act of 1933, as amended, the Company hereby requests that the effective date of the above-captioned Registration Statement be accelerated so that the Registration Statement may become effective at 4:30 p.m. Eastern Daylight Time, on Friday, June 24, 2011, or as soon thereafter as practicable.

In connection herewith, the Company hereby acknowledges that:

·                  Should the Securities and Exchange Commission (the “Commission”), or the Commission’s staff, acting pursuant to delegated authority, declare the filing effective, it does not foreclose the Commission from taking any action with respect to the filing;

·                  The action of the Commission or the Commission’s staff, acting pursuant to delegated authority, in declaring the filing effective, does not relieve the Company from its full responsibility for the adequacy and accuracy of the disclosure in the filing; and

·                  The Company may not assert comments from the Commission or the Commission’s staff or the declaration of effectiveness of the above-captioned Registration Statement as a defense in any proceeding initiated by the Commission or any person under the federal securities laws of the United States.

Sincerely,

Celsion   Corporation

By:

/s/   Jeffrey W. Church

Name:

Jeffrey   W. Church

Title:

Vice   President and

Chief   Financial Officer